Ifthereisastrikeofbusdrivers,the

发布时间:2020-07-10 06:45:44

If there is a strike of bus drivers, they ________ walk to school tomorrow.













A.may have to












B.must have to











C.may have











D.must have

网友回答

A解析have to意为“不得不”。可以用在may之后,但是不能用在must之后。
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